Humidifier



FIG. 1 is a front elevational view of one embodiment of a humidifier,showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken-line showing of environmental structure in FIGS. 1-5, is forillustrative purposes only, and forms no part of the claimed invention.

The ornamental design for a humidifier, as shown and described.